public async Task <string> SignAsync(string data)
{
var signRequest = new SignRequest
{
KeyId = DefaultKeyId,
Algo = DefaultSignRequestAlgo,
Data = Encoding.UTF8.GetBytes(data)
};
HttpClient httpClient = HttpClientHelper.GetHttpClient(this.providerUri);
try
{
var hsmHttpClient = new HttpWorkloadClient(httpClient)
{
BaseUrl = HttpClientHelper.GetBaseUrl(this.providerUri)
};
SignResponse response = await this.SignAsyncWithRetry(hsmHttpClient, signRequest);
return(Convert.ToBase64String(response.Digest));
}
catch (Exception ex)
{
switch (ex)
{
case IoTEdgedException <ErrorResponse> errorResponseException:
throw new HttpHsmCommunicationException(
$"Error calling SignAsync: {errorResponseException.Result?.Message ?? string.Empty}",
errorResponseException.StatusCode);
case IoTEdgedException ioTEdgedException:
throw new HttpHsmCommunicationException(
$"Error calling SignAsync: {ioTEdgedException.Response ?? string.Empty}",
ioTEdgedException.StatusCode);
default:
throw;
}
}
finally
{
httpClient.Dispose();
}
}
async Task <SignResponse> SignAsyncWithRetry(HttpWorkloadClient hsmHttpClient, SignRequest signRequest)
{
var transientRetryPolicy = new RetryPolicy(TransientErrorDetectionStrategy, TransientRetryStrategy);
SignResponse response = await transientRetryPolicy.ExecuteAsync(() => hsmHttpClient.SignAsync(this.apiVersion, this.moduleId, this.generationId, signRequest));
return(response);
}